package MainClass;

class Circle{
	void printArea(double r){
		System.out.println(r*r*3.1416926);
	}
}
class Rectangle{
	void printArea(double a,double b){
		System.out.println(a*b);
	}
}
public class MainClass{
	public static void main(String args[]){
		Circle circle=new Circle();
		circle.printArea(100);
		Rectangle rect=new Rectangle();
		rect.printArea(100,65);
	}
}




